Arrowhead construction



Feb. 20, 1962 w. DOONAN 3,022,077

ARROWHEAD CONSTRUCTION Filed Sept. 15, 1958 INVENTOR. W/LL/A M DOO/VA/VUnited States Patent 3,022,077 ARROWHEAD CONSTRUCTION This inventionrelates to an arrowhead construction, and particularly to an arrowheadconstruction having an extendable cutting blade for insuring a moreextensive wound in the game. One object of the present invention is toprovide an arrowhead construction having a retractable cutting bladewhich can be extended to provide a relatively long cutting surface,thereby preventing the arrowhead construction from being dislodged fromthe game by twisting and turning of the game in flight.

Another object of the present invention is to provide an arrowheadconstruction having a retractable blade which retracts substantiallycompletely into the arrowhead body, thereby insuring easy removal of thearrow from the game after the kill.

Another object of the present invention is to ,provde a retractablearrowhead construction which requires a minimum number of machining andassembly operations, thereby enabling the arrowhead construction to beconstructed as a relatively low cost item.

Another object of the invention is to provide a retractable bladearrowhead construction wherein the blade can be manually moved betweenthe retracted and extended positions easily and quickly.

Another object of the present invention is to provide a blade-equippedarrowhead construction wherein the blade can be caused to have a looseor tight fit in the arrowhead so as to adapt the device to the wishes ofall prospective users.

'Qther objects of this invention will appear in the followingdescription and appended claims, reference being hadto the accompanyingdrawings forming a part of this specification wherein like referencecharacters designate corresponding parts in the several views.

In the drawings:

FIG. 1 is a top plan view of one embodiment of the invention;

FIG. 2 is a side elevational view of the FIG. 1 embodiment;

FIG. 3 is a view of the FIG. 1 embodiment taken in the same direction asFIG. 2 but showing the blades in extended positions.

Before explaining the present invention in detail, it is to beunderstood that the invention is not limited in its application to thedetails of construction and arrangement of parts illustrated in theaccompanying drawings, since the invention is capable of otherembodiments and of being practiced or carried out in various ways. Also,it is to be understood that the phraseology or terminology employedherein is for the purpose of description and not of limitation.

In the drawings there is shown an arrowhead construction comprising anarrowhead body formed with a bullet-like frontal portion 11, a generallycylindrical midportion 12 and a generaly cylindrical rear portion 13.Rear portion 13 is internally contoured to define a socket 14 forreception of an arrow shaft (not shown).

Cylindrical portion 12 is cut away to provide a generally deep recess 16and a generally shallow recess 18. Recess 16 defines a generally flatsurface 20 which facially engages one face of a cutting blade 22 whensaid blade is in the FIG. 3 position. A second blade 24 partiallyoverlaps blade 22, and a clamping screw 26 is extended through theforward portions of said blades into arrowhead body 10 to mount theblades for pivotal movement around the screw axis. As will beappreciated from FIG.

"ice

3, the blades constitute barb elements for inflicting wide and deadlywounds in the game.

The juncture between shallow recess 18 and deep recess 16 forms a pairof shoulders 23 and 30 which cooperate with the longitudinal edges 32and 34 of blades 22'and 24 to prevent movement of the blades from theFIG. 3 extended cutting position to the FIG. 2 retracted or housedposition. However, by exerting a manual pressure on the blade (22 or 24)in the arrow 36 direction, the blade can be deflected slightly so as toclear the adjacent shoulder (28 or 39) and permit manual pivoting of theblade into the FIG. 2 position.

The ease with which the blades can be moved from the extended to theretracted positions can be controlled by the adjustment of screw 26. Byloosening the screw slightly the clamping pressure of the screw on theblades can be lessened so as to permit a slight play of the bladesbetween surface 20 and the screw head; this slight play allows theblades to be easily moved into the retracted position. Conversely atightening of screw 26 causes the screw head to exert a tight clampingpressure on the blades for requiring the user to exert greater force tomove the blades from the FIG. 3 to the FIG. 2 position. The adjustableclamping characteristic of screw 26 accommodates the device to thedesires of all prospective users.

In use of the illustrated device the device is telescoped onto theforward portion of a conventional arrow and the arrow construction isfired with the blades 22 and 24 in the FIG. 3 extended positions. As thearrow construction strikes the game the blade edges 40 and 42 cut intothe game so as to inflict a wide and therefore deadly wound. On drawbackof the arrow construction the trailing edges 32 and 34 catch on the gameso as to tend to cause the blades to open to right angularly extendingpositions 52 and 54 to thereby further widen the wound.

The arrow construction may be easily removed from the game by forcingthe arrow construction entirely through the game until blades 22 and 24are exposed, then moving the blades to their FIG. 2 retracted positions,and thereafter withdrawing the arrow construction out of the game in arearward direction. In this connection it will be noted that in theretracted position the cutting blades are located within the confines ofarrowhead member 10 so as to offer no resistance to rearward withdrawalof the arrow construction from the game.

The illustrated device is provided with no surfaces requiring closemachining, and since the device incorporates a minimum number of partsit may be manufactured as a relatively low cost item.

I claim:

1. The combination comprising an arrowhead body having a side surface; afirst relatively deep recess formed in said side surface; a secondrelatively shallow recess formed in said side surface immediatelyrearward of the first recess to cooperate therewith in defining ashoulder; a blade having its leading portion positioned within the firstrecess and having one of its longitudinally extending edges engaged withthe shoulder to position the blade in a location extending angularly outof the arrowhead body; clamping means extending through the forwardportion of the blade and into the arrowhead body to pivotally secure theblade therein, whereby the exposed portion of the blade may be manuallylifted to move out of engagement with the shoulder and permit manualpositionment of the blade substantially entirely within the arrowheadwith its rear portion frictionally engaged with the recess-formingsurface of the second recess.

2. The combination comprising an arrowhead body having a side surface; afirst relatively deep recess formed in said side surface; a secondrelatively shallow recess formed in said side surface immediatelyrearward of the first recess to cooperate therewith in defining ashoulder;

a blade having its leading portion positioned within the first recessand having one of its longitudinally extending edges engaged with theshoulder to position the blade in a location extending angularly'out ofthe arrowhead body; a headed clamping screw extending through theforward portion of the blade and into the arrowhead body to pivotallysecure the blade therein; whereby the exposed portion of the blade maybe manually lifted to move out of engagement with the shoulder andpermit manual positionment of the blade substantially entirely withinthe shoulders to position the blades in locations extending an .gularlyout of the arrowhead body; clamping means extending through the forwardportions of the blades and into the arrowhead body to pivotally securethe blades therein; whereby the exposed portions of the blades may bemanually lifted to move out of registry with the shoulders and permitmanual positionment of the blades substantiallyentirely within thearrowhead with their rear portions 4 frictionally engaged with therecess-forming surfaces of the second recess. a

4. The combination comprising an arrowhead body having a generallycylindrical section; a first relatively deep recess formed in saidcylindrical section and defining a first flat face; a second relativelyshallow recess formed in said cylindrical section and defining a secondfiat face; a third face extending right angularly between said first andsecond faces to cooperate with the cylindrical surface of thecylindrical section in defining a shoulder; a blade having its forwardportion disposed in the first recess; a pivot means mounting said bladefor pivotal movement around an axis located adjacent the forward portionof the blade; said blade having a first longitudinal edge extendinggenerally parallel with and adjacent the external cylindrical surface ofthe cylindrical section, and a second longitudinal edge taperingrearwardly toward the rear limit of the first longitudinal edge forcooperating therewith in defining a point structure.

Doonan Nov. 11, 1958

